Cook-stove.



J. E. CHAMBERS.

COOK STOYE. l PPLIUTIOH FILED PB.17, 190s. l 986,360. Patented Man?, 1911.

2 SHEETS-SHEET 1.

f .i il 1 1 I J. E. CHAMBERS.

000K sToVB. APPLICATION FILED APRJ?. 1908.

Patented Mar. 7, 1911.

2 SHEETS-SHEET 2,

JOHN E. CHAMBERS, or sHELBYvrLLE, INDIANA.

COOK-STOVE.

Specification o1 Letters Patent.

Patented Mal'. '7, 1911.

Application filed April 17, 1908. Serial No. 427,563.

To all whom 'it may concern:

Be it known that I, JOHN E. CHAMBERS, a citizen of the United States, .residing at Shelbyville.,- in the county of Shelby and State of Indiana, have invented certain new and useful Improvements in Cook-Stoves, of which the following is a specification, reference being had therein to the accompanving drawing.

This invention 'relates to an improvement in cooking stoves and the object of the invention is the. provision of a. stove of this character with which all kinds of cooking may be done with the least consumption of fuel.

A further object of the invention. is the provision of a cooking stove in which all of the heat generated is utilized, none o f the heat being permitted to escape without coming in contact with the food to be cooked.

A further object of the invention the provision of Va cooking stove of a. neat and attractive appearance .and of a construction to avoid heating the room in which the same is used.

linvent-ion is shown and wherein like 'characters of reference refer to similar parts in the several views.

In the drawings, Figure 1 is a front eley vation of my improved cooking Sto-ve7 parts being-shown in section. Fig. 2 is a side elevation of one side of the stove with the lid to the upper compartment in its raisedposition. Fig. 3 is a side elevation of the opposite side of the stove with the lid to the upper compartment in its lowered position. Fig. 4 is a detail view showing the means employed for preventing passage .of fuel to the main cooking compartment when same is rendered air tight. Fig. 5 is a detail view.

of means employed for preventing passage of fuel to upper compartment when lid 1s closed. Fig. 6 is a sectional view of one of the lids used to close the upper compartments. y' y Referring now more particularly to the drawings, A designates the casing of Am improved cooking stove which may be o any desired configuration and which v1s preferably formed of wood or any other poor. 'conductorof heat. Positioned within the casing A are a plurality of cooking compartments which are preferably formed of sheet.

vmetal, the space between the outer Walls of the several cooking compartments and the A.inner surfaces of the walls of the casing A being filled with a suitable packing of fireproof material, said packing serving to retain the heat within the cooking compart-4 ing used for broiling, boiling and the like,

while the compartment-s D and E are utilized as ovens. The compartments B and C which are identical in construction are positioned adjacent the top of the casing A and are closed when not in use by means of lids B and .Cf which are hinged to the upper portion of the casing A. The lids B and C are in the form of bottomless boXes ofwood or any other suit-able material which is a poor conductor of heat which are filled with suitable packing or heat insulating material, which is retained in placev by sheets of strawboard or other suitable material, b, c, se-

cured in yany suitable manner across the lower portions of the lid. Over the out-er faces -,of the sheets b, c, is a layer of cotton, Wool, or. other elastic packing which is retained in place by means of cloth sheets b', and o. To protect the cloth sheets b and c.'

from injury from steam and grease, detach'- a'ble covers b2 and c2 are provlded which" are designed to be detachably' secured over'the sheets b" and c in any suitable manner so that they can be removed and replacedwhen desired. The detachable covers b2 and c2 are `and C, so as to form an air tight lit therewith. To prevent the packing in the lids B and C from becoming. compressed,

spacing rin s b, formed of strawboard or other' suita le material, are positioned therein.

Centrally positioned within the lower part of each of the cooking compart ents B and C is a burner F, of any suitab e construction from which extend fuel pipes f, the

outer ends of which project for a slight distance without the casing A. Detachably secured in the projectin ends of the pipes f which extend from te burners F in the cooking compartments B and C are conical gas nozzles f', which, are connected in any suitable manner to a gas pipe F which is supported upon the exterior of the casing A. and which terminates in a threaded nipple of the usual construction to permit its attachment to the ordinary gas supply pipe. Air is supplied to the burners F by means of ipes G, the lower ends of which connect wit the pipes f adjacent the connection of the gas nozzles f therewith and the upper ends of which terminate flush with the top of the casing A so as to be closed by the lids B- and C when the same are lowered. -From this construction it will be seen that while the lids are in their raised positions air can pass freely to the burnersbut that when the lids are lowered not only is the air supply to the burners cut oit but all of the heat which is in the cooking compartments will be -retained therein and prevented from escaping through the air pipes. 4 As the supply of air to the burners F is cut off when the lids are lowered,`it is apparent that the burners. if they are allowed t-o remain lighted, will be extinguished as soon as the lids are lowered and it is therefore important that' means l should be provided for automatically cutting oit the gas supply immediately the lids are` lowered, as otherwise should-the person using the stove omit to turn oii` the gas and lower the lid of one of the upper cooking compart- 'ments` the vHaine of the burner would at once be extinguished and any food therein would of coursebe ruined by the escaping gas. To prevent this the gas pipes which communicate with the nozzles f are provided with suitable valves f? therein which arelof theq usual construction and are provided with the Ausual operating handles. and thelids B' and C are provided with downwardly projectingl fingers f. which are adapted when the lids are moved to their closed position to engage the operating handles of the valve f2 and move the same to their closed positions. If the valves are already in their closed positions, it is obvious that the handles thereof will not be engagedby the downwardly pro- 'ecting fingers on the lids when the same are owered, as in this case the fingers will merely pass vin front of theu handles of the valvd and prevent the manipulation thereof until the lids have again been raised.

Of the two cooking compartments D and E heretofore referred to', one of said comartments, namely, the compartment D, is designed to be heated by gas while the other may be heated by electricity or any other suitable heating medium. The compartment D is in the form of a sheet metal cas-- is in the form of a bottomless box of wood or other suitable material and is filled with a packing of non-conducting material which is retained therein by a' metal panel which is se.

cured across tho open face thereof, the edges of said metal panel being inturned and secured in any suitablemanner to the edges of the wooden door. The portion of the casing,r A surrounding the door opening therein is provided with a facing of sheet metal against which the door D abuts when closed, so that, no part of the wood casing will be subjected to the action of heat when the door is closed.

I designates a burner of any suitable construction which is supported centrally ot the lowermost portion ofthe cooking compartment D and from which extends a pine the outer 4end of which projects tor a slight distance without the casing A and has threaded or otherwise removably secured therein a conical gas nozzle i which is connected by a suitable branch pipe to the gas pipe F heretofore described` a suitable valve 2 being positioned in the pipe t to control the flow of gas to the burner l. Secured within the cookingr compartment D and directly over the burner Iftherein, is a heat spreader I which is preferably in the' while the louter 'ends thereof pass through l and are secured to ai sheet metal plate K" which 1s secured to the interior of the side wall of the casing A across an opening a Which is formed therein. Secured to the ,bottom of the cooking department D and overlying the inlet end of the lower air tube K is ashield K- which is provided with openings at the ends thereof so that the air in entering the oven will not be permitted to come into direct contact with theburner. A

similar lshield is secured to the top of the' cooking compartment so as to overlie the as a vent for the oven.

corners of the oven. The necessary air is supplied tothe burner I to produce a proper combustible mixture by means of a pipe K ist] which connects the lower air tube 'K' yWith the tube z' which extends from the burner, adjacent the connection of the gas nozzle z" therewith. As the pipe K" connects with lthe lowermost air pipe K inside 'of the casing A,it will be apparent that when the iny let ends of the air pipes K and K are closed .there is no communication Whatev between the interior of the` oven and the outer air, so that any heat. 1n the oven will Je retalned there for a considerable period of time and the cooking may be carried on after the burnerhas been extinguished, thereby etfect ing a considerable saving in the amount of fuel which is consumed.

To close the inlet ends of the air pipe K A and K', a damper in the form of a door L *a facing of asbestos or other nonconducting material, to prevent heating thereof When closed. Projecting laterally from the front side of the door L is a member Z which is designed when the door is in its closed position to lie alongside of the handle of the gas valve 2, when said valve is in its closed position, so as to prevent the valve being turned to an open position to permit gas to pass to the burner I While the door is `in its closed position. From this construction it is obvious that if the gas to the burner isy .turned off the'door L may be readily closed and the gas cannot thereafter bel turned on until the door is open, and it is also obvious that if the gas is turned on to the burner the door cannot be closed until the same has vbeen cut off, so thatin no case is it possible for gas to flow to the burner while'the door L is in its closed osition.

It Will be note that all of the cooking compartments of the stove may be closed so as to exclude all air therefrom and as all of the compartments are surrounded byaheavy covering of non-conducting material, it Will be apparent that any heat therein may be retained for a long period of time, so that .in cooking it is only necessary to utilize the drawings, as it is obvious that many minor changes may be made thereto Without departing from the spirit of the invention as defined in the appended claims. f

That I claim is: y 1. Ina stove, a casing, a cooking compartment therein, a door affording access to said compartment, a burner for said com-` partment, a fuel pipe leading to-said burner,

a valve for'said fuel pipe positioned outsideV of the casing, an alr pipe communicating with the burner, means independent of the compartment door for closing said air pipe, and Ameans preventing manipulation of the fuel valve when said air pipe is closed.

2. In a stove, a casing, a cooking comc partment therein` a door affording access to said compartment, a burner for said -compartment,'a fuel pipe leading to said burner, a valve for said fuel pipe positioned outside of the casing, an air 'pipe communicating with the burner, a door independent of the compartment door for closing said air pipe, and means preventing the manipulation of thefuel valve When said door is in its closed position.

yof the casing, an air pipe communicating with. the burner, .an independent door for closing said air pipe, and means carried by said door and arranged to lie in the path of movement of the-fuel valve to prevent manipulation thereof when the vdoor is closed.

4. In a firelessvcooker, a heatinsulated cooking compartment, a burner. therein, a fuel pipe leading Vto said burner, a valve for said pipeprovided with anyoperating-handle, an air pipe leading direct to said burner, a door'v adapted when closed to directly overlie the inlet opening of said pipe and cut off the passage of air to said burner, and means carried by said door and adapted when the door is closed to lie in the path of the handle of said valve and prevent manipulation thereof While the air pipe is closed.

5.. In a stove, a casing, a cooking compartment therein, a door affording access to 'said compart1nent, a burner for said comexterior of the casing to the upper and lowerl portions of said cookingy compartment, and a separate and independent door for closing said air passages.

7. In a fireless cooker, a heat insulated cooking compartment, a burner within said compartmenta door affording access to said compartment, air passages leading from the exterior of the casing to the upper and lower portions of the cooking compartment, a connection between one of said air passages and the burner,and asepara-te and independent` door f or closing said air passages.

8. In a stove, a` casing, a cooking compartment therein, a burner therefore, a fuel pipe leading from the exterior of the casing to the burner, air passages leading from the exterior of the casing to the upper and lower portions of said compartment a. connection k `between one of said passages and the fuel pipe within the casing, and a door for closing said air passages.

9. In a stove, a casing, a cooking compartment therein, a burner therefor, a fuel pipe leading from the exterior of the casing tothe burner, a valve in said fuel pipe, air passages leading from the exterior of theV 'casing to the upper and lower portions of saidcompartment, a connection between one of said passages and the fuel pipe, a doorv adapted to close said air passages, and means preventing the manipulation of the" fuel valve when the door is closed.

10. In a stove, a casing, a cooking compartment therein a burner therefor, a fuel pipe leading from the exterior of the casing tothe burner, a valve in said fuel pipe, air passages leading .from the exterior of the casing to the upper and lower-portions of, said compartment, a connection between oneL lie inithe path of the handle of the Vvalve when the door is closed.

of said air passages and the fuel pipe, a door adapted to close said air passages, and

YmeansQcarrie'd said doorandarranged to fuel 1'1. In afireless'cooker, an'air tight heat insulated' cooking com artmentv provided with a draft opening, a oor affording access to said compartment, a burner in said coin-. U

partlnent, means vindependent of 'the' compartment door for closing 4said .draftl open-l fing, an'd means preventing the passage of fuel to the burner when'said draft opening.,

is closed.

12. In a fireless cooker, an air tightheat insulated cooking .compartment provided' -with draft and Vent openings, a burner in said cooking compartmenta door `affording access to the compartment, means independent of the compartment door for closing said draft and vent openings, and means for preventing the assage of fuel to the burner when the draft and vent openings are closed.

13. A combined gas stove and freless cooker comprising a cooking compartment provided with a door affording access thereto'and with an opening therein leading to the exterior thereof, a burner in said compartment, a fuel valve controlling the pas- `sage of fuel to said burner, a damper for the opening in the cookingcompartment,

and means coperating with said valve' to hold the same in a position to prevent passage of fuel to' the burner when'the damper is closed and permitting free actu-ation of said valve when the damper is in open position.

In testlmon whereof I vafx/ my signature.

in presence o two witnesses.

' JOHN E.' CHAMBERS. Witnesses:

W. F. TINDALL, E. H. D. YOUNG. 

